POSTCAP based technology utilizes an amino acid salt (AAS) that
can operate in a conventional scrubber system similar to that for MEA,
but with negligible solvent volatility, less corrosion, very low
degradation and lower regeneration energy. The absorption activity is
believed to be similar to MEA, but the capacity of AAS is theoretically
double that of MEA. Design capacity is close to this theoretical
capacity, which will lead to lower solvent flow rate and inventory for
AAS. The solvent is an aqueous solution of approximately 30 – 40 percent
AAS and water.